title: Factors affecting premature chromosome condensation of cumulus cell nuclei injected into rat oocytes.
mesh_terms: D000818:Animals; D002467:Cell Nucleus; D002875:Chromosomes; D019976:Cloning, Organism / Q000379:methods*; D005260:Female; D008845:Microinjections; D009865:Oocytes / Q000502:physiology*; D051381:Rats; D011916:Rats, Inbred F344; D011917:Rats, Inbred Lew; D017208:Rats, Wistar; D013047:Specific Pathogen-Free Organisms